I am using dual OS (Windows 7 and Ubuntu 12.04 LTS) in my laptop Dell inspiron14. It has two VGA (Intel Graphics and nVIDIA)
When I work in Windows 7, it using Intel Graphics and When I work in Ubuntu, it using nVIDIA because of this when I use Ubuntu battary goes down quickly.
How to disable nVIDIA and make it to use Intel Graphics?
Please help me in this case.
I couldn't not find best way by search over the internet.